Improvement in looms



UNITED STATES PATENT OEEICE.

JOEL c. eARnETsON AND AMos P. eAERETsON, OE .IAoKsON, HENRY COUNTY, IOwA.

IMPROVEMENI IN LOOMS.

Specification forming part of Letters Patent No. 35,2%), dated May 13, 1862.

To @ZZ whom it may concern:

Be it known that we, J OEL C. GARRETSON and AMos P. GAnnETsoN, of Jackson township, Henry county, and State of Iowa, have invented new and useful Improvements in Looms; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference Inarked thereon, making a part ot' this speciication.

The nature of our invention consists, first, in the employment of an oblong box with its movable bottom to hold t-he shedders and in which they operate secon d, in the employment of shedders attached to their harness-frames and a shedding-bar to produce a shed in the web; third, in the employment of an incline on one side of shedding-bar, a sliding framerack, and dog` to vary the shed in the web.

To enable others skilled in the art to make and use our invention, we will proceed to dcscribe its construction and operation.

A represents the square frame; B B, the driving-wheels; h b, the wedge proj eetions on their circumferences.

C C are rods connecting the driving-wheels B B to the lathe D.

J represents an arm in center of lathe D, slatted at its outer end and pivoted at K.

E represents the thin shedding-bar,pivoted at K in slatted J as its fulcrum. This bar E toward the end farthest from its fulcrum has its upper and lower edges beveled nearly to a point, leaving a guide-rod, E, as its point.

L represents an incline (see Fig. 4) on one side of bar E, its base toward fulcrum K and nearest that point.

M represents a sliding' frame having two uprights, M M', the whole sliding upon a center bar, N.

Q represents a small spiral spring around a sliding rod that passes through the left-hand upright M of :trame M and extending' nearly to upright M. on the right-hand side of the machine.

N represents a square bar tasten ed in frame A and slatted at one side to receive the halfelliptio spring fr and rack R. A spiral spring, P, surrounds bar N between slide M and the side framing of the machine, exerting a constant tendency to force said slide to the left.

R represents a rack with teeth on its npper side at one end, and fastened with a screw at the other end in the square bar N.

'r represents ahalf-elliptic spring placed under rack R, and which presses it upward.

S represents a dog, which works on a pivot near its center, and is fastened on top of bar N between the two uprights H M of frame M, and has the under side of its inner end slightly beveled or bent upward.

T represents an oblong square box secured to the center of cross-pieces n of the framing, and having a movable bottom, U, and spiral spring V underneath, and having a square hole through it near its center. This box T contains the shedders lV, and in which they operate and rest on the movable bottom U.

t t represent inclosed spiral springs secured near both ends ot' the upper cross-piece, u, of the frame, and f rom which sti rrup-wires f f extend over the top of all the harness-frames Gr.

WV, Fig. 2, represents a front view of the shedders when placed together with their harness-frames G attached, as shown in perspective; in box T.

lV l XV lV, Fig. 3, represent the shedders separated and as constructed for `producing the various sheds in the web. Diagram l of Fig. 3 shows the manner in which sheddingbar E passes through the shedders when at l work.

X represents grooved uprights, in which the harness-frames slide to preserve them in their even vertical motion.

Y represents two doublearmed pivoted posts, one on each side of frame A near its bottom, having arms Z, which connect with the pioker-staves H and projecting arms d, which are pressed forward by the wedges b l) at every revolution of the wheels B, and thus levers H are thrown against the shuttle, producing a quick and regular motion.

As the wheels B revolve, the connecting rods c c operate lathe D, and shedding-bar E is pressed through the shedders. Then the bevel-point comes in contact with edge g of shedder No. 1, the shedder is elevated and shedders Nos. 2, 3, and 4 are depressed, which makes one shed. The incline L on bar E having now corne in contact with the right-` hand upright M of frame M, the frame is moved to the right hand over one tooth of the rack R, which is thrown up by the halfelliptic spring r underneath it, and the tooth of the rack holds frame M securely to that point. Spiral .spring` Q causes a constant pressure of its inclosed rod against the lefthand side of shedding-bar E to insure the action of bar E upon the desired shedder. Then the lathe D is moved forward, bar E is drawn out of the shedders, releasing them from the action of its beveled edges, but leaving its lengthened end or guiding -rod E within the shedders, at which stage bar E is thrown by force of the spiral spring Q from edge g of shedder No. l to the edge g of shedder No. 2, when the backward vibration of the lathe D brings bar E in contact with the edge g of No. 2 shedder and elevates it and depresses shedders Nos. l, 3, and 4L, making another shed in the web, and in like manner until all the shedders have been elevated and depressed in their turn. At this period the left-hand upright M of frame M Acomes in contact with the outer end of dog S, which is thereby swung round upon its center, and its inner beveled end thus forced on top of rack R, and so holdin g it down that at the forward Vibration offlathe D the frame M and bar E are released from the action of the rack and at liberty to pass back again. Spiral spring P now comes into action and forces slide M back to place of beginning', when the righthand upright M of frame M comes in contact with dogS and forces it off of rack R, when it is readyfor another series. This loom can be worked by hand or other power.

Vhat we claim and desire to secure by Letters Patent is- 1. The oblong box combined with its movable bottom to hold the shedders, and in which they operate, constructed substantially as described, for the purposes set forth.

2. The shedders attached to their harnessframes, combined with the shedding-bar to produce a shed in the web, the same being constructed and operating substantially as described and set forth.

3. Combining the sliding frame with the rack and dog to vary the shed in the web, operating substantially as described and set forth.

JOEL C. GARRETSON. l AMOS P. GARRETSON. litnessesz J. FRANKLIN REIGART, D. RowLAND. 

